<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>DCO 签署系统</title>
    <!-- 引入Bootstrap CSS -->
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
    <style>
        body {
            padding-top: 60px;
            background-color: #f8f9fa;
        }
        .card {
            margin-bottom: 20px;
        }
    </style>
</head>
<body>
<!-- 导航栏 -->
<nav class="navbar navbar-expand-lg navbar-dark bg-dark fixed-top">
    <div class="container">
        <a class="navbar-brand" href="#">DCO 签署系统</a>
        <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav"
                aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
        </button>
    </div>
</nav>
<br>
<!-- 主内容 -->
<div class="container">
    <div class="row justify-content-center">
        <!-- 签署DCO -->
        <div class="col-md-4">
            <div class="card text-center shadow-sm">
                <div class="card-body">
                    <h5 class="card-title">签署DCO</h5>
                    <p class="card-text">提交你的签署信息，完成DCO签署。</p>
                    <a href="sign.html" class="btn btn-primary">开始签署</a>
                </div>
            </div>
        </div>
        <!-- 检查签署状态 -->
        <div class="col-md-4">
            <div class="card text-center shadow-sm">
                <div class="card-body">
                    <h5 class="card-title">检查签署状态</h5>
                    <p class="card-text">查看你是否已成功签署DCO。</p>
                    <a href="status.html" class="btn btn-success">查看状态</a>
                </div>
            </div>
        </div>
        <!-- 查看所有签署者 -->
        <div class="col-md-4">
            <div class="card text-center shadow-sm">
                <div class="card-body">
                    <h5 class="card-title">查看所有签署者</h5>
                    <p class="card-text">浏览所有已签署DCO的用户信息。</p>
                    <a href="signatures.html" class="btn btn-info">查看签署者</a>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- 引入Bootstrap JS和依赖 -->
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
</body>
</html>
